I think you've got a great start on the mesh, there are a few weirdnesses in flow around the obliques and shoulders. What stands out to me most now is the proportions. They look wrong except that I assume she is supposed to be a child. If this is the case, you may need to thin down the forearms or some similar trick to make it look like it's a small child in a poofy dress, rather than wrong proportions.
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Like the concept art.
Eric: Makes sense, and thanks for the tip on proportions.
Pliang: Will do. It will be a shin-tastic model when I'm done.